Trends in hip fracture rates in US hemodialysis patients, 1993-2010.
Am J Kidney Dis
; 62(4): 747-54, 2013 Oct.
Article
in En
| MEDLINE
| ID: mdl-23631997
ABSTRACT
BACKGROUND:
Changes in mineral and bone disorder treatment patterns and demographic changes in the dialysis population may have influenced hip fracture rates in US dialysis patients in 1993-2010. STUDYDESIGN:
Retrospective follow-up study analyzing trends over time in hospitalized hip fracture rates. SETTING &PARTICIPANTS:
Using Medicare data, we created 2 point-prevalent study cohorts for each study year. Hemodialysis cohorts included patients with Medicare as primary payer receiving hemodialysis in the United States on January 1 of each year; non-end-stage renal disease (ESRD) cohorts included Medicare beneficiaries 66 years or older on January 1 of each year. FACTORS Age, sex, race, primary cause of ESRD, dual Medicare/Medicaid enrollment status, comorbid conditions.OUTCOMES:
Hip fracture rates. MEASUREMENTS Unadjusted hip fracture rates measured using number of events per 1,000 person-years in each year, then adjusted for patient characteristics. Poisson models estimated strata-specific event rates.RESULTS:
The observed number of first hospitalized hip fracture events and the adjusted hip fracture rate increased steadily from 1993 (831 events; 11.9/1,000 person-years), peaked in 2004 (3,256 events; 21.9/1,000 person-years), and decreased through 2010 (2,912 events; 16.6/1,000 person-years). The trend for the subset of hemodialysis patients 66 years or older was similar to the trend for the full hemodialysis cohort; however, it differed markedly in magnitude and pattern from the non-ESRD Medicare cohort, for which rates were substantially lower and slowly decreasing since 1996.LIMITATIONS:
Unable to provide causal explanations for observed changes; hip fractures identified through inpatient episodes; results do not describe hemodialysis patients without Medicare Parts A and B; laboratory values unavailable in the Medicare data set.CONCLUSIONS:
Temporal trends in hip fracture rates among Medicare hemodialysis patients differ markedly from the steadily decreasing trend in non-ESRD Medicare beneficiaries, showing a relatively rapid increase until 2004 and relatively rapid decrease thereafter. Further research is needed to define associated factors.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Renal Dialysis
/
Hip Fractures
/
Kidney Failure, Chronic
Type of study:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limits:
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
Country/Region as subject:
America do norte
Language:
En
Journal:
Am J Kidney Dis
Year:
2013
Type:
Article